What does the Bible say about the bond among believers?

In Titus 3:15, the Apostle Paul expresses the deep connection among believers when he instructs Titus to greet those who love us in the faith. This highlights that true love among Christians stems from their shared faith in Christ. The bond is not based on personality or preferences but on a collective identity in Christ. Same in 3 John 1:14, where John encourages greeting friends, indicating the fellowship and love shared in the Body of Christ. Such love is a testimony of our unity and a reflection of Christ's love towards us.